three-layer-cylindrical screen
three-layer-cylindrical screen
three-layer-cylindrical屏幕
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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This paper analyzed the structure and the working process of three-layer-cylindrical grader and the grading performance and screen mesh-size are experimentally studied.
分析了三层滚筒式银杏分级机的结构特点及工作过程，并对分级机的分级性能及筛孔大小进行了试验研究。
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